Intel Core Ultra 5 245HX vs Intel Core Ultra 5 336H Comparison

Where Each One Wins

The benchmark data splits cleanly between these two mobile processors. The Intel Core Ultra 5 245HX wins 16 of the 17 recorded head-to-head tests, while the Intel Core Ultra 5 336H claims a single victory. That one win, however, points to a distinct strength in the 336H.

The 245HX dominates every Cinebench workload. In Cinebench R15, R20, and R23, both single-core and multi-core tests show the 245HX ahead by a consistent 34.9%. The single-core scores of 460, 1918, and 4568 respectively leave the 336H at 341, 1422, and 3387. The gap is uniform across all three Cinebench versions, which suggests a fundamental per-thread performance advantage rather than a scaling quirk.

PassMark workloads tell a similar story, but with varying margins. The largest wins for the 245HX come in integer math (48.5% ahead) and floating-point math (46.5% ahead). Data encryption shows a 41.0% lead, and data compression a 40.2% lead. Random string sorting sits at 38.4%, while multithread performance is 33.4% ahead. Extended instructions yield a 27.2% advantage, and prime number finding is 20.1% higher. The narrowest PassMark victory for the 245HX is single-thread performance at 11.7% (4481 versus 4013).

The 336H takes PassMark physics with a score of 2682 against 2526 for the 245HX, a 5.8% margin. This is the only test where the newer Panther Lake part wins, and it indicates that the 336H handles physics simulation workloads with slightly better efficiency despite losing most other benchmarks.

The average benchmark scores reinforce the split. The 245HX averages 48287 across all recorded tests, while the 336H averages 34485. The 245HX sits at the 90th percentile among all CPUs, whereas the 336H sits at the 84th percentile. In terms of nearest rivals, the 245HX trades nearly even with the Intel Core Ultra 5 235A (0.2% ahead), AMD Ryzen AI Max PRO 380 (0.2% ahead), AMD EPYC 4345P (0.4% behind), and Intel Core i5-14600K (0.7% behind). The 336H sits close to the Intel Core i7-13700HX (0.2% behind), Intel Core i5-13450HX (0.4% ahead), AMD Ryzen 7 3700X (0.7% ahead), and AMD Ryzen AI 7 350 (0.8% ahead).

The Verdict

The data indicates that the Intel Core Ultra 5 245HX is the stronger performer for nearly all compute-heavy tasks. Anyone running Cinebench-style render workloads, data compression, encryption, or heavy integer and floating-point math should pick the 245HX. Its 34.9% lead across all six Cinebench tests and its 40% plus margins in several PassMark workloads make it the clear choice for content creation, scientific computing, and general productivity.

The Intel Core Ultra 5 336H has a narrower appeal based on the recorded data. Its single win in PassMark physics (2682 versus 2526) suggests it handles physics simulation workloads with a slight edge, but that 5.8% margin does not offset the losses elsewhere. The 336H also operates at a lower 25 watt TDP compared to the 55 watt TDP of the 245HX, which makes it the more power-efficient option for thin-and-light systems where sustained multi-core performance is less critical.

For users prioritizing raw throughput, the 245HX is the answer. For users who need the 336H's lower power envelope and its physics workload advantage, the choice is equally clear. The 245HX also offers an unlocked multiplier, while the 336H is locked, which matters for overclocking-oriented mobile platforms. The 245HX uses the Intel BGA 2114 socket, while the 336H uses Intel BGA 2540, so platform compatibility is not interchangeable.

Head-to-Head Benchmarks

The most striking pattern in the head-to-head data is the uniform 34.9% delta across every Cinebench version. In Cinebench R15 multi-core, the 245HX scores 3261 against 2418 for the 336H. The R15 single-core test shows 460 versus 341. Moving to R20, the 245HX delivers 13590 in multi-core and 1918 in single-core, while the 336H manages 10076 and 1422. In R23, the 245HX reaches 32358 multi-core and 4568 single-core, compared to 23991 and 3387 for the 336H. This consistency indicates the 245HX holds a fixed per-clock advantage that does not vary with workload intensity or thread count.

PassMark results show larger swings. The biggest margin is in integer math, where the 245HX scores 92150 against 62070, a 48.5% lead. Floating-point math follows closely at 46.5%, with scores of 120735 and 82415 respectively. Data encryption shows a 41.0% gap (30022 versus 21291), and data compression a 40.2% gap (393071 versus 280340). Random string sorting is 38.4% higher for the 245HX (47616 versus 34402). PassMark multithread shows a 33.4% advantage (38069 versus 28545). Extended instructions are 27.2% ahead (31212 versus 24542), and prime number finding is 20.1% ahead (359 versus 299).

The single-thread PassMark score, recorded under both the names "single_thread" and "singlethread", shows the 245HX at 4481 versus 4013 for the 336H, an 11.7% gap. This is the smallest PassMark margin outside of the physics test, which the 336H wins. The physics test is the only head-to-head where the 336H comes out ahead: 2682 versus 2526, a 5.8% advantage for the 336H.

The 245HX's average benchmark score of 48287 puts it 28.0% above the 336H's 34485. The 245HX also places higher in the overall CPU percentile ranking: 90th versus 84th. While the 245HX sits near several desktop-class rivals in the nearest rivals list (the Intel Core i5-14600K is only 0.7% higher in average score), the 336H aligns more closely with older HX-class mobile chips like the Intel Core i7-13700HX.

FAQ

Q: Which processor wins the most benchmark tests?

A: The Intel Core Ultra 5 245HX wins 16 of the 17 recorded head-to-head benchmarks. The Intel Core Ultra 5 336H wins only one test, PassMark physics.

Q: How large is the single-core performance gap?

A: In Cinebench R15, R20, and R23 single-core tests, the 245HX leads by exactly 34.9% in each case. In PassMark single-thread, the 245HX leads by 11.7% (4481 versus 4013).

Q: Where does the 336H outperform the 245HX?

A: The 336H wins the PassMark physics test with a score of 2682, which is 5.8% higher than the 245HX's 2526. This is the only recorded benchmark where the 336H comes out ahead.

Q: What are the average benchmark scores for each processor?

A: The 245HX has an average benchmark score of 48287, while the 336H averages 34485. The 245HX sits at the 90th percentile of all CPUs, and the 336H sits at the 84th percentile.

Q: How do the two processors compare in Cinebench R23 multi-core?

A: The 245HX scores 32358 in Cinebench R23 multi-core, while the 336H scores 23991. The 245HX leads by 34.9%, consistent with the other Cinebench versions.

Q: Which processor has a higher boost clock?

A: The 245HX has a boost clock of 5.10 GHz, while the 336H boosts to 4.60 GHz. The 245HX also has a higher base clock at 3.10 GHz versus 1.90 GHz for the 336H.

Architecture Differences

The two processors come from different Intel architectures and generations. The Intel Core Ultra 5 245HX is part of the Core Ultra Series 2, built on Arrow Lake with the codename Arrow Lake-HX. The Intel Core Ultra 5 336H belongs to Core Ultra Series 3, built on Panther Lake with the codename Panther Lake. The 245HX is designated as Ultra 5 (Arrow Lake-HX), while the 336H is Ultra 5 (Panther Lake-H).

Both use a 3 nm process node, but the foundries differ. The 245HX is fabricated by TSMC, while the 336H is fabricated by Intel. The 245HX has a listed transistor count of 17,800 million and a die size of 243 mm². The 336H does not have recorded transistor or die size data in the database.

Core configurations diverge. The 245HX has 14 cores and 14 threads, while the 336H has 16 cores and 16 threads. Despite having fewer cores, the 245HX outperforms the 336H in multi-core tests due to higher clock speeds. The 245HX runs at a base clock of 3.10 GHz and boosts to 5.10 GHz, whereas the 336H operates at 1.90 GHz base and 4.60 GHz boost. The 245HX also has a higher TDP of 55 watts compared to 25 watts for the 336H.

Cache layouts differ as well. Both processors have 192 KB of L1 cache per core. The L2 cache is 3 MB per core on the 245HX, while the 336H has 2.5 MB per core. The shared L3 cache is 24 MB on the 245HX and 18 MB on the 336H. The larger L3 cache on the 245HX likely contributes to its strong performance in data compression and encryption workloads.

Memory support shows a split. The 245HX supports DDR5 memory only, with dual-channel configuration and 102.4 GB/s bandwidth. The 336H supports both DDR5 and LPDDR5X memory, also dual-channel, with a higher bandwidth of 115.2 GB/s. Neither processor supports ECC memory.

PCIe connectivity differs. The 245HX provides Gen 5 with 20 lanes (CPU only), while the 336H provides Gen 5 with 12 lanes (CPU only). Integrated graphics also differ: the 245HX uses Arc Xe-LPG Graphics with 48 execution units, while the 336H uses Intel Xe3 Graphics.

The 245HX has an unlocked multiplier, making it overclockable, while the 336H is locked. The sockets are incompatible: the 245HX uses Intel BGA 2114, and the 336H uses Intel BGA 2540. The 245HX was released earlier, with a release date of 2025-01-12, while the 336H followed with a release date of 2026-01-04. Both processors are listed as active in production. The part numbers are SRVFM for the 245HX and SA4RD for the 336H. Neither has a recorded launch MSRP in the database.